You really learn about polymorphism when you 've understood the patterns .
只有当你已经明白了这些模式之后，才能真正理解多态性。
When I was learning computer programming , I often tried to connect the abstract concepts of variables , functions or polymorphism into more vivid , visual descriptions .
It became clear that the environmental effects ( nurture ) are modulated by genetic polymorphism and epigenetic programming of gene expression ( nature ) to shape development .
那么显然，遗传多样性和基因表现（先天）的后天变化可以调节环境因素（后天），从而塑造个性发展。
Chapter 3 digs into inheritance ( basic and multiple ) and polymorphism .
第三章深刻讲解了继承（基本继承和多重继承）和多态。
It 's the functionality that we had in the last section , but without the added overhead of run-time polymorphism .
